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What are LEDs?

How do LEDs emit light?

What are LEDs?

LEDs are a type of semiconductor called "Light Emitting Diode".
White LEDs, which have achieved practical realization through the use of high-brightness blue LEDs developed in 1993 based on Gallium Nitride, are attracting increased attention as a 4th type of light source.

How do LEDs emit light?

LEDs are semiconductor light sources that combine a P-type semiconductor (larger hole concentration) with an N-type semiconductor (larger electron concentration).
Applying a sufficient forward voltage will cause the electrons and holes to recombine at the P-N junction, releasing energy in the form of light.
Compared with conventional light sources that first convert electrical energy into heat then into light, LEDs convert electrical energy directly into light, delivering efficient light generation with little wasted electricity.

LEDs are semiconductor light sources that combine a P-type semiconductor (larger hole concentration) with an N-type semiconductor (larger electron concentration).
Types of LEDs

Two types of LEDs are available, a lamp type (leaded) and a chip type (surface mount). Users can select the ideal type based on set requirements.

Lamp Type / Chip Type

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